diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index 3359931d5437a6007973b8522bb7cc7fe66fbc78..e3ab815f6e60545564f6999b8fbfbce651d6cd1a 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -29,6 +29,7 @@ python3 ./test.py -f insert/in_function.py
 python3 ./test.py -f insert/modify_column.py
 #python3 ./test.py -f insert/line_insert.py
 python3 ./test.py -f insert/specialSql.py
+python3 ./test.py -f insert/timestamp.py
 
 # timezone
 
diff --git a/tests/pytest/insert/timestamp.py b/tests/pytest/insert/timestamp.py
new file mode 100644
index 0000000000000000000000000000000000000000..4c9cf36f40e31a792b550a557937d25d968f4fe2
--- /dev/null
+++ b/tests/pytest/insert/timestamp.py
@@ -0,0 +1,81 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self.ts = 1607281690000
+
+    def run(self):
+        tdSql.prepare()
+
+        # TS-806
+        tdLog.info("test case for TS-806")
+
+        # Case 1
+        tdSql.execute("create table t1(ts timestamp, c1 int)")
+        tdSql.execute("insert into t1(c1, ts) values(1, %d)" % self.ts)
+        tdSql.query("select * from t1")
+        tdSql.checkRows(1)
+
+        # Case 2
+        tdSql.execute("insert into t1(c1, ts) values(2, %d)(3, %d)" % (self.ts + 1000, self.ts + 2000))
+        tdSql.query("select * from t1")
+        tdSql.checkRows(3)
+
+        # Case 3
+        tdSql.execute("create table t2(ts timestamp, c1 timestamp)")
+        tdSql.execute(" insert into t2(c1, ts) values(%d, %d)" % (self.ts, self.ts + 5000))
+        tdSql.query("select * from t2")
+        tdSql.checkRows(1)
+
+        tdSql.execute(" insert into t2(c1, ts) values(%d, %d)(%d, %d)" % (self.ts, self.ts + 6000, self.ts + 3000, self.ts + 8000))
+        tdSql.query("select * from t2")
+        tdSql.checkRows(3)
+
+        # Case 4
+        tdSql.execute("create table stb(ts timestamp, c1 int, c2 binary(20)) tags(tstag timestamp, t1 int)")
+        tdSql.execute("insert into tb1(c2, ts, c1) using stb(t1, tstag) tags(1, now) values('test', %d, 1)" % self.ts)
+        tdSql.query("select * from stb")
+        tdSql.checkRows(1)
+
+        # Case 5
+        tdSql.execute("insert into tb1(c2, ts, c1) using stb(t1, tstag) tags(1, now) values('test', now, 1) tb2(c1, ts) using stb tags(now + 2m, 1000) values(1, now - 1h)")
+        tdSql.query("select * from stb")
+        tdSql.checkRows(3)
+
+        tdSql.execute(" insert into tb1(c2, ts, c1) using stb(t1, tstag) tags(1, now) values('test', now + 10s, 1) tb2(c1, ts) using stb(tstag) tags(now + 2m) values(1, now - 3h)(2, now - 2h)")
+        tdSql.query("select * from stb")
+        tdSql.checkRows(6)
+
+        # Case 6
+        tdSql.execute("create table stb2 (ts timestamp, c1 timestamp, c2 timestamp) tags(t1 timestamp, t2 timestamp)")
+        tdSql.execute(" insert into tb4(c1, c2, ts) using stb2(t2, t1) tags(now, now + 1h) values(now + 1s, now + 2s, now + 3s)(now -1s, now - 2s, now - 3s) tb5(c2, ts, c1) using stb2(t2) tags(now + 1h) values(now, now, now)")
+        tdSql.query("select * from stb2")
+        tdSql.checkRows(3)
+        
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())